one volume of liquid nitrogen vaporizes to 694 volumes of nitrogen gas. Consequently, the warming of a cryogenic liquid in a sealed container produces high pressure, which can rupture the container.

PETALING JAYA: There are two fundamental hazards in industrial ... If there is a leak of liquid oxygen, it can choke us because the air we breathe contains 21% oxygen and 78% nitrogen.

The US FDA (Food and Drug Administration) warns against adding liquid nitrogen to food “just before consumption”. Proper handling and precautions are crucial to avoid health hazards.